Lug-strap attachment.



UNITED STATES PATENT ()FFTQE.

LUG-STRAP ATTACHMENT.

Specification of Letters Patent.

Patented Feb. 27, 1906.

Application filed July 6, 1904. Serial No. 215,477.

T0 0% whom, it may concern.-

Be it known that I, J OSEPH FRANK HAR- RINGTON, a citizen of the United States, residing at Killingly, in the county of Windham and State of Connecticut, have invented a new and useful Lug-Strap Attachment, of which the following is a specification.

This invention relates 'to the mechanism employed in a loom for connecting the sweepstick with the picker-staff and is applicable to all kinds of wool, cotton, linen, silk, jute, ramie, and carpet picker-staff looms.

The object of this invention is to provide a mechanism for connecting the sweep-stick with the picker-staff which can be easily and quickly adjusted and which will lengthen the life and increase the efliciency of the pickerstaff and lug.

The embodiment of the invention that is illustrated by the accompanying drawings has a link which adjustably connects an arm that is fastened to the lug-strap with an arm that is adjustably attached to the lower part of the lathe or rocker, whereby the level of the point of engagement of the lug-strap with the picker-staff may be changed without stopping the loom and the engagement so effected that the speed of the picker increases as the picker-staff is swept across by the sweepstick for throwing the shuttle.

Figure 1 of the illustrations shows an outline of an adjustable lug-strap attachment which embodies the invention with so much of a loom as is necessary to comprehend the invention. Fig. 2 shows a view of the'same with the picker-staff thrown over. Fig. 3 shows a view of the lug-arm. Fig. 4 shows a view of the lock and rocker-arm, and Fig. 5 shows a section of the lock which fastens the link to the rocker-arm.

In the mechanism illustrated the pickerstaff 1 is hung in a common manner at the base of the lathe or the part of the loom commonly known as the rocker, so that it may be swept over for impelling a shuttle from the shuttle-box 2 along the shuttle-race 3 in the usual way by a sweep-stick 4, which is connected with any suitable power mechanism. The staff shown is drawn back by a strap 5 and spring 6.

The lug-strap 7, which preferably consists of several plies of leather, canvas, rubber, or similar materials which are commonly used for the purpose, is fastened to the end of the sweep-stick and loops about the picker-staff, as usual.

Previously the means most commonly employed for holding the lug-strap upon the picker-staff has been a flexible loop known as a power-strap. This invention eliminates the power-strap and substitutes a connection which is more durable and satisfactory and easier to adjust.

In the form of connection which is illustrated in the accompanying drawings there is an arm 8 fastened to one side of the lugstrap. It is preferred to fasten this arm by means of the bolt 9, that oins the lug-strap to the end of the sweep-stick, and by prongs 10, which are made to extend from the arm into the material of the lug-strap, so that the lugstrap and arm move together. The outer end of the lug-arm 8 is pivoted to the upper end of a link 11. The lower end of the link shown has teeth on one edge and extends through a mortise in the lock-plate 12,which is pivoted to the outer end of an arm 13, that is secured to the rocker, preferably by the same bolt 14 that pivots the picker staff. The bolt 14 extends through a slot in the rocker-arm and into the rocker, so that the arm may be adjusted longitudinally. The lock-plate has a stud 15, that extends into the mortise in position to engage with the teeth on the link, and has a spring 16, which thrusts between a screw 17 and a shoe 18, that bears against the edge of the link for causing an engagement of the teeth and the stud.

The length of the link between the lug-arm 8 and the rocker-arm 13 is adjusted bypulling the lower end of the link back against the spring in the lock-plate and releasing the teeth from the stud and then raising or lowering the link. When the link is released, the spring causes an engagement of the teeth and stud, which looks them together. The

height of the upper end of the link determines the point of engagement of the lug-strap with the picker-staff, and the adjustment of the rocker-arm fixes the distance of the axis of the lower end of the link from the axis of the picker-staff.

If the picker or the sweep-stick operating parts wear or if for any other reason it is desired to alter the speed, power, or throw of the picker-staff, the link may be adjusted by grasping its lower end and disengaging the teeth and stud and lowering or raising it until the stud will engage the necessary teeth and hold the link, with the lug-arm and lathearm, the proper distance apart.

As the picker-staff in the form of the inven- IIO between the axis of the lower end of the link and the axis of the picker-staff, and if the axes of the picker-staff and lower end of the link are coincident the speed of the upper end of the picker-stall will be uniform during its entire sweep.

The employment of thisconstruction allows the point of application of power on the picker-staff to be varied as desired without stopping the loom and without making holes in or injuring the picker-staff, which length ens the life of the staff, reduces wear on the lug, and prevents the breaking of pickerstafls-and loom-smashes, and thus increases the'capacity of the loom. Italso permits the regulation of the initial impulse given the shuttle and the regulation and control of the speed of the picker-staff during the entire throw of the shuttle, as different kinds of filling and varying circumstances may require.

The invention claimed is 1. In a loom, the combination with a lugstrap of flexible material and an ordinary rocker, of an arm attached to the inner end of the flexible lugr strap and extending outwardly beyond the pickerstick, and a link pivotally connected with the outer end of the arm and extending outside the picker-stick to and pivotally connected with the rocker, substantially as specified.

2. In a loom, in combination, a lug-strap of flexible material, an ordinary rocker, an arm attached to the inner end of the flexible lug-strap and extending outwardly beyond the picker-stick, and an adjustable link pivotally connected with the outer end of the arm and extending outside of the picker-stick to and pivotally connected with the rocker, substantially as specified.

3. A lug strap su port having an arm adapted to be attache to the inner end of and to extend outwardly beyond the outer end of the ordinary flexible lugstrap, an arm adapted to be connected with and to extend outwardly beyond the ordinary rocker, and a link connecting the lug-strap arm with the rocker-arm outside the picker-stick, substantially as specified.

4. A lug strap support having an arm adapted to be attached to the inner end of and to extend outwardly beyond the outer end of the ordinary flexible lug-strap, an arm adapted to be adjustably connected with and to extend outwardly beyond the ordinary rocker, and a link connecting the lug-strap arm with the rocker-arm outside of the pickerstick, substantially as specified.

5. A lug-strap support having an arm adapted to be attached to the inner end of and to extend outwardly beyond the outer end of the ordinary flexible lug-strap, an arm adapted to be connected with and to extend outwardly beyond the ordinary rocker, and an. adjustable linkconnecting the lug-strap: arm with the rocker-arm outside of the-picker-' stick, substanti'allyas specified.

6. A lug.- strap support having an arm adapted to be attached to the inner end of and to extend outwardly'beyond the outer end of the ordinary flexible -lug.strap,' an arm adapted to be connected with-and to extend outwardly-beyond the ordinary rocker, and a link pivoted to one arm and adjustably connected with the. other arm outside of the picker-stick-, substantially asspecified-x 7. A lug-strap supporthavingan arm-with a bolt-hole and'prongs whereby it -may be connected with the inner end of and may extend outwardly beyond the-'outer-end of:the ordinary flexible lug-strap; an-"arm' :with a bolt-hole whereby'it may be connected with and extend outwardly beyond theordi nary rocker, and a-linkpivoted to one arm and adjustably connected with the other arm outside of the picker-stick, substantially'asspecified.

8. Alugstrap supporthaving. an arm adapted to beattached to the' innerend. of and to extend outwardly beyond the outer end of the ordinary flexible lug-strap, an arm. adapted to be adjust-ably connected with and to extend outwardly beyond the ordinary' rocker, and alink pivoted to onearm and adjustably connected withv the other arm out Sid; the picker-stick, substantially asspecifie 9. A lug-strap support having.an-= arm adapted to beattached'to the-ordinary flexi ble lug-strap, an arm adapted to be connect-- ed with the ordinary rocker, a lock-plate con nected with one arm, a link connected with the other arm and extendin through :the lock-plate, the lock-plate and ink havingan" engaging stud and teeth, and a spring-for normally holding the'stud engaged with the teeth, substantially as-specified.

10. A lug-strap support having an arm" adapted to be attachedrto-the'ordinary flexi blelug-strap, an arm adapted tobe'connected with the pivot of the picker-staff, alockplate-connected with the latter arm and provided with a stud and a spring, and a link pivoted to the lug-arm and extending through the lock-plateand providedv with teeth that are adapted to engage the stud on the lock- 11. A lug-strap support having an arm I staff, a rocker, an arm connected With and adapted to be attached to the ordinary flexi- I ble lug-strap, an arm adapted to be fastened to the ordinary rocker, a lock-plate connected with one arm, a link connected With the other arm and adapted to be connected With the lock-plate, and a spring for normally holding the lock-plate and link together, substantially as specified. l

12. The combination of a picker-staff, a sweep-stick, a flexible lug-strap attached to the sweep-stick and embracing the pickerextending outwardly from the flexible lugstrap beyond the picker-stick, and a link pivotally connected With the outer end of the arm outside the picker-stick and adjustably connected With the rocker outside of the picker-stick, substantially as specified.

JOSEPH FRANK HARRINGTON.

Witnesses:

JAMES N. TUCKER, GEORGE W. JA UEs. 

